Std . 9 , CBSE ✅ 1. What is Matter? Anything that has mass and occupies space is called matter. Examples: air, water, stone, wood, metals, food, etc. ✅ 2. Classification of Matter A. Based on Physical State Solid Fixed shape and volume Particles closely packed Very...
1. What are Rational Numbers A rational number is any number that can be written in the form p/q, where: p and q are integers q ≠ 0 All integers are rational numbers because an integer a = a/1 Decimal representations: Terminating decimals → rational...
